fix non https url in composer.json

composer.json

@@ -24,7 +24,7 @@
         {
             "name": "D3 Data Development (Inh. Thomas Dartsch)",
             "email": "info@shopmodule.com",
-            "homepage": "http://www.d3data.de"
+            "homepage": "https://www.d3data.de"
         }
     ]
 }